Gage for trimming or shearing machines.



F. G. GRAVES. GAGE FOR TRIMMING OR SHEARING MACHINES. APPLIOATION FILED Emma, 1910.

964,240. Patented July 12,1910.

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GAGE FOR TRIMMING OR SHEARING MACHINES. APPLICATION FILED FEB.3, 1910.

964,240, Patented July 12, 1910.

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Wc'fzlessesf [nueniort j re FRANCIS C. GRAVES, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNITED STATES ENVELOPE COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

GAGE FOR TRIMIVIING OR SHEARING MACHINES.

To all whom it may concern:

Be it known that: I, FnANoIs C. GRAVES, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented a new and useful Improvement in Gages for Trimming or Shearing Machines, of which the following is a specification.

This invention relates to those gages which are designed to be applied to paper, cloth, or leather, cutting, ming machines for the purpose of locating the sheets or piles or blocks of sheets in the correct positions with relation to the knives, to receive the cuts necessary to give them the required shapes.

The object of the invention is to provide a simple device which can be readily attached to a part, preferably the movable straight-edge or back gage, of a cutting, shearing or trimming machine, in such man ner that while it will move with the ordinary gage, it can be quickly adjusted to any desired locality along the gage, and can be easily set at any required angular relation thereto, in order to locate and retain the sheet or sheets in the necessary position to receive the desired cut, or can be turned back out of position so that it will not interfere with the regular use of the ordinary straightedge or gage.

This invention is particularly adapted to be applied to a cutting or trimming machine for gaging piles of paper or other stock which it is necessary to trim on various angles in order to reduce the sheets to blanks of uniform angular outline, such, for instance, as blanks for odd sized and shaped envelops.

Figure 1 of the accompanying drawings shows a plan of an adjustable gage which embodies the invention. Fig. 2 shows a front view of the same. Fig. 3 shows an end view. Fig. 4 shows a section on the plane indicated by the dotted line a4. on Fig. 1.

The plate 1,,which forms the bed of the device illustrated, is shown as attached to the top of a bar 2 that may represent the ordinary straight-edge or back gage of a common paper cutting machine, or a piece that may be attached to the top of the table of such a machine. The common straightedge or back gage, as Well known, is movably mounted 011 the top of the table of the Specification of Letters Patent.

Application filed February 3, 1910.

shearing or trim- Patented July 12, 1910.

Serial No. 541,878.

machine, parallel with the knife. At each end of the bed plate shown, is a bearing block 3, and near the middle is a bearing block 4. A spindle 5, with right and left threads, is held by these blocks in such manner that while it may be rotated, it has no endwise movement. The ends of the spindle are preferably square to permit the application of a wrench or handle for rotating the spindle.

The forked hubs 6, of one or more (preferably two) brackets 7, are mounted upon the threaded spindle so that the brackets may be moved longitudinally along and turned over on the axis of the spindle. Nuts 8, with threads that fit the threads of the spindle, are arranged between the forks of the bracket hubs.

A pair of wings 9 are pivoted, by a bolt 10, to each bracket, in such manner that the gage faces 11 of the wings may be closed quite near together, so as to form a small angle between them, or opened apart to nearly a straight line, or about 180 degrees from each other. A grooved segment 12 is bolted to the outer end of each bracket. Clamping keys 13 are screwed on threaded studs 14: that project from the edges of the wings through the slots in the segments. Turning the keys in one direction loosens the wings so that they may be moved to the de sired angular relation with each other and with the cutting knife of the machine. Turning the keys in the other direction clamps the wings in the desired positions.

The bed of this device may be readily fastened, as by screws 15, to the upper edge of the common back gage of a cutting machine. lVhen it is desired to use the back gage in the usual manner, the wings of the attachment are lifted over to the rear, the brackets freely turning 011 the threaded spindle. lVhen it is desired to use the attachment, the brackets and wings are turned over onto the cutting table in front of the back gage. The spindle may be rotated for the purpose of locating the wings in the desired positions on the table. The clamping keys are loosened, and after the wings are adjusted to the desired angular relation with each other and with the cutting knife, they are tightened so as to hold the wings in position. It is customary to set the wings of this gage by a pattern of the desired shape, which is laid aside after the Wings have been secured in the proper relations. In using the ga es, it is only necessary to have the edges 0 the sheets or blocks of paper or other material pressed firmly against the gaging faces of the Wings When the cut is being made. The Wings can be set so that both pairs may be used to cut the. stock at the same angle, or they may be set so that when one pair is used, the stock will be cut at one angle, and when the other pair is used, the stock Will be cut at another angle. By the use of this attachment, many blanks can be accurately and unifomly cut in a very short time and With a consequent reduction in cost of production, Which is quite desirable in the manufacture of envelops.

The invention claimed is:

1. A cutter gage having a bed, a bracket mounted on the bed and rotatable up out of and down into operative position, Wings pivotally attached to the bracket, and means for.

clamping the Wings in various positions.

2. A cutter gage having a bed, a bracket movable longitudinally along the bed, Wings pivotally attached to the bracket, and means for clamping the Wings in various posit-ions.

3. A cutter gage having a bed, a bracket rotatably mounted on and movable longitudinally along the bed, Wings pivoted to the bracket, and means for clamping the Wings in various positions.

4. A cutter gage having a bed, a spindle mounted on the bed, a bracket rotatably mounted on and movable along the spindle, Wings pivotally attached to the bracket, and means for clamping the Wings in various positions.

5. A cutter gage having a bed, a spindle, With right and left threads, mounted on the bed, brackets rotatably mounted on and movable along the spindle, nuts for moving the brackets along the spindle, Wings pivotally attached to the brackets, and means for clamping the Wings in various positions.

6. A cutter gage having a threaded spindle, a bracket mounted on the spindle, a nut mounted on the spindle and adapted to move the bracket along the spindle, Wings pivotally attached to the bracket, a segment attached to the brackets, and means forclamping the Wings to the segment.

FRANCIS G. GRAVES.

l/Vitnesses:

H. R. WVILLIAMs, JOSEPHINE M. STREMPFER. 

